package com.yyc.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.alibaba.fastjson.JSON;

public class MyInterceptor implements HandlerInterceptor{

	private final Logger logger = LoggerFactory.getLogger(MyInterceptor.class);
	/**
	 *  在请求处理之前进行调用（Controller方法调用之前）
	*/
	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		logger.info("=================================="+request.getRequestURI()+"==================================");
        return true;
	}

	/**
	 * 请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）
	*/
	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		logger.info("请求完成");
	}

	/**
	* 在整个请求结束之后被调用，也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）
	*/
	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

}
